Design, development and validation of electron ionisation models for nano-scale simulation

TL;DR

This paper presents the design, implementation, and validation of two electron ionization models for nano-scale simulations within the Geant4 toolkit, comparing their performance against experimental data across many elements.

Contribution

It introduces two new theory-driven electron ionization models, extending Geant4's simulation capabilities and validated against extensive experimental data.

Findings

Models show good agreement with experimental data

Extended simulation accuracy across over 50 elements

Improved capabilities for nano-scale electron ionization simulation

Abstract

Two theory-driven models of electron ionization cross sections, the Binary-Encounter-Bethe model and the Deutsch-M\"ark model, have been design and implemented; they are intended to extend the simulation capabilities of the Geant4 toolkit. The resulting values, along with the cross sections included in the EEDL data library, have been compared to an extensive set of experimental data, covering more than 50 elements over the whole periodic table.